Wall panel application of fibre-reinforced lightweight concrete
Makaleler > Tam Makale · 2010
Yazarlar: Bengi ARISOY
Australian Journal of Civil Engineering, Uluslararası, 2010, cilt 6, ss 13-20
DOI: 10.1080/14488353.2010.11463944
Özet
In this study, material properties of lightweight concrete reinforced with randomly distributed poly vinyl alcohol (PVA) fibres are discussed, on account of a possible structural use. Flexural, compressive and cyclic performances of the material are tested and the results are presented. The effect of fibres on high-strength lightweight concrete is investigated, and the expected performance of any wall panel produced with the mentioned material is compared with commercially-available wall panels. In the frame work of the study, hollow sphere aggregates are used to produce lightweight concrete and PVA fibres are used to increase ductility. Using 1.5% fibre volume fraction caused an increase in the flexural strength by up to 2.5 times compared to lightweight concrete, and using lightweight aggregate provides considerable decrease in density depending amount of lightweight aggregate used. Using this type of aggregate with a range between 20% to 40% of lightweight aggregate content provided densities in a range between 1.2 to 1.6 g/cm3. It is found that the matrix design of PVA fibre-reinforced lightweight concrete produced for this study has 5% to 15% higher flexural strength than the ones commercially available for approximately the same density range.